The new approach of config loading allows us to combine and move all
the config loading and verifications actions from cmd to pkg module;
it will be executed on demand only and save us from non expected
runtime errors. The examples of usage will be introduced in further
changes.
Change-Id: I1b4c29f9c5b1de3e46a1faf5c28fea5c7b3eb4e1
Signed-off-by: Ruslan Aliev <raliev@mirantis.com>
91529ca046